@Abhishekn I have an idea that may be appealing to you, please read the link contents. Of course, most of the themes are not installed on my device. To solve this problem and lack of themes, I think adding these features to the very program. It is necessary that the 3rd version of the program was released early on, there was not much of this. I hope that this feature will be added to Poweramp in the future.
@blaubär @djdarko

@maxmp An interesting idea for the Seek bar and navigation bar. There are currently white or black white or black backgrounds in the default themes, there are empty spaces between these distances, the attractive feature that is on the lawnchair launcher is adding a mask to the dock that can be An option can be enabled or disabled, if we use the same functionality in the Poweramp, we can have a more user-friendly interface.

Those with Huawei and their Huawei device have some issues. It seems to me to be using the theme material 2 after a long-awaited update that comes with a rounded album that looks like Android Wear.
https://play.google.com/store/apps/details?id=com.folginar.material2pa

You can use the power shade to solve this problem. But the Poweramp button does not work in this program, but after stopping the music, it automatically stops the application and the program notification will be disabled from the status bar. This app is currently on Google Play, maybe it's coming back sometime, maybe it's not available for a short time. You can download and use this app from Android valid sites.